26.Ten giant pandas are heading to the Shanghai Expo, they will go on year – long display.
A.which B.where C.what D.when
25.They shouldn’t be responsible for the accident. They carried out the order .
A.as being told B.as told C.as telling D.as they told
24. for breaking my promise, I hung my head in shame.
A.Blamed B.To be blamed C.Blaming D.To blame
23.In China, the peach, as a symbol of long life, an ideal birthday present.
A.presents B.works C.makes D.gives
22.The Chinese mainland and Taiwan will add 88 cross Strait flights during the upcoming Spring Festival holidays.
A.the other B.other C.more D.another
第一节:语法和词汇(共15小题,每小题1分,满分15分)
从A、B、C、D四个选项中,选出可以填入空白处的最佳选项。
21. Obama was elected president of the USA is a big success for the blacks in America.
A.Which B.That C.What D.As
22.(本小题满分14)
已知椭圆与双曲线有共同的焦点F1、F2,设它们在第一象限的交点为P,且
(1)求椭圆的方程;
(2)已知N(0,-1),对于(1)中的椭圆,是否存在斜率为的直线,与椭圆交于不同的两点A、B,点Q满足?若存在,求出的取值范围;若不存在,说明理由。
21.(本小题满分12分)
已知函数,其中为常数。
(1)若当时,取得极值,求的值,并求出的单调区间;
(2)设,问是否存在实数,使得当时,有最大值,若存在,求出的取值范围;若不存在,说明理由。
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